baber/WOPTO huggingface dataset:
Patent GB-315045-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K23/02
Filed: 1928-05-10
Abstract: 315,045. Eastwood, F. A., and Associated Electrical Industries, Ltd. May 10, 1928. Pole-pieces, cores, yokes, and carcass structures.-In a dynamo in which a portion of the magnetic circuit is formed of high retentivity I material, such as permanent magnet steel, with a' permanent flux in order to secure a rapid building up of the machine volts, loss of flux in the high retentivity component is minimized by separating this component in each pole from a component of low retentivity by means of a non- magnetic layer. In the form shown shown in Fig. 1, the yoke 3 has poles each comprising a portion 5 of sheet steel stampings of the usual kind and a portion 6 of high retentivity permanent magnet material, the two portions forming independent magnetic circuits which are separated by a layer 7 of nonmagnetic material. The field windings embrace the whole of the composite poles. Fig. 3 shows a form in which a tungsten steel or similar portion 6 is adapted to be attached to the yoke independently of the low retentivity stampings 5 and brass laminae 10 by means of a nonmagnetic bolt which takes into a drilling 12. The depth of the portion 6 may be slightly greater than that of the portion 5. In other forms, the high retentivity portion is laminated or it may consist of two pieces of ordinary magnet steel separated by an insert of high -retentivity steel.
Patent GB-514149-A (GB)
Title: Manufacture of anhydrous aluminium sulphate
IPC: C01F7/743
Filed: 1938-04-14
Abstract: 514,149. Aluminium sulphate. GROVES, W. W. (Monsanto Chemical Co.). April 14, 1938, No. 13828/39. Divided out of 506,034 under which a Specification was laid open to inspection under Sect. 91 of the Acts, May 19, 1938. [Class 1 (iii)] Aluminium sulphate containing at least 22 per cent. of soluble Al2O3, and which may readily be converted into the anhydrous sulphate by heating, say to 400-500C., is obtained by treating an aluminium sulphate solution with the necessary amount of substantially anhydrous aluminium sulphate. A bulky anhydrous product is obtained by effecting the mixing treatment at a temperature above 115C. ; by mixing below 115C. the anhydrous product may be obtained in the form of dense, hard, pellets having an apparent density of.at least 0.6. Both the mixing and heating steps mav be carried on as a continuous operation, and a portion of the anhydrous final product be recycled to the mixing step.
Patent GB-543614-A (GB)
Title: A mechanical means for mending knitted fabrics or garments or the like
IPC: D04B17/00
Filed: 1940-09-04
Abstract: 543,614. Darning. PAGE, J., and PAGE, L. T. J. Sept. 4, 1940, No. 13830. [Class 112] A stocking is secured upon a disc 26, by a resilient band lying in a groove 41, and is stretched over a stationary cylinder 14. A number of hook needles, indicated by the dotted line 16<SP>1</SP>, are mounted in grooves on the outside of an inner cylinder 15a with their butts 18 engaging' a cam-groove 21 in a drum 20. When the drum is'oscillated by means of a handle 13, the needles are reciprocated through the material of the stocking and knit a patch with a thread supplied by a yarn-feeder 22. The stocking is moved forward step-by-step by means of a ratchet pawl 29 and cam projections 36. Needles not in use are run into an annular groove 42 in the drum. A roller 25 carried by the yarn-feeder holds the material down adjacent to the knitting point. When a sleeve 44 is moved back against a .spring 45, the yarnfeejer can be turned about a pivot 47.
Patent GB-1537077-A (GB)
Title: Apparatus for producing a germ-free air flow
IPC: A61G13/00
Filed: 1976-04-06
Abstract: 1537077 Germ-free ventilation PIELKENROOD-VINTEX BV 6 April 1976 [18 April 1975] 13833/76 Heading F4V A device for producing germ-free air flows in the vicinity of an operating table 1 is formed by a unit supportable beneath the table and comprising a blower 11, filters 13, 15, and two parallel tubes 18 having air discharge openings 19 directed laterally downward. The unit may be suspended from rods 5 on the table 1 by variable length straps 8, or it may be mounted on a movable carriage, Fig. 4 (not shown). The tubes 18 may be interconnected at 20 by another air-discharge tube. Specification 1,393,394 is referred to.
Patent GB-1030106-A (GB)
Title: Improved oil-extended polyepoxide compositions and resulting products
IPC: C08L63/00
Filed: 1964-04-03
Abstract: Oil-extended curable polyepoxide compositions comprise (1) at least 5% by weight of a polyepoxide, the percentage being based on the total of polyepoxide and oils, (2) an aromatic oil having an aromatic content of over 60% by weight and a boiling range above 200 DEG  C., and (3) a hydrocarbon oil having an aromatic content less than 30% by weight and a boiling range above 200 DEG  C., in an amount of at least 3% by weight based on the total oils and in sufficient quantity to be capable of a two-phase cured system.  The compositions may also contain an alkylated phenol and are cured by admixture and reaction with conventional epoxy resin curing agents.  Other optional additives specified are monoexpoxides and aggregates. The polyepoxide and the curing agent may be partially reacted before the addition of the oils.  Highly aromatic oils specified are thermally cracked residues, high boiling fractions of catalytically cracked gas oil, or of coking cycle stock, residues from the pyrolysis of residual petroleum fuel oils used in the production of gas, and highly aromatic extracts of lube oil fractions obtained by the use of non-reactive highly polar solvents.  The low-aromatic oils specified are lube oil raffinates and spray base oils.  The cured products comprise a continuous phase of an oil-plasticized reaction product of polyepoxide and curing agent, and a dispersed phase of droplets of oil. The compositions are useful as sealants and coating materials and as binders in the construction of non-skid surfaces on roadways and the like.
Patent GB-625732-A (GB)
Title: Electric device to prevent the formation of calcareous incrustations and dislodge those already existing
IPC: F28F19/00
Filed: 1946-05-08
Abstract: 625,732. Imparting special properties to water. VERMEIREN, T. I. S. May 8, 1946, No. 13922. Convention date, Oct. 6, 1945. [Class 46] [Also in Group XVIII] Incrustation in boilers &c. is prevented by subjecting the boiler feedwater, or other liquid, to an alternating electromagnetic field in apparatus comprising a closed cylinder 2, preferably of non- magnetic material, which is provided with a water &c. inlet duct and outlet 1. 8 respectively and is fitted with an annular non - magnetic housing 3 which depends around the duct 1 to near the bottom of the cylinder 2 and locates a solenoid 4. The direction of flow of the water is indicated by the arrows 9.
Patent GB-1361375-A (GB)
Title: Steering systems with hydraulic power assistance
IPC: B62D5/32
Filed: 1973-03-23
Abstract: 1361375 Fluid pressure telemotors ZAHNRADFABRIK FRIEDRICHSHAFEN AG 23 March 1973 [25 March 1972] 14047/73 Heading B7H In a steering system of the kind having a metering control pump 2 and a control valve 3 both operable by a steering wheel 4 with at least two servomotors 8, 9 actuating the steerable vehicle wheels, the pressure pipes leading to the servomotors 8, 9 form two independent hydraulic circuits 16, 17 and 18, 19 and have switching valves 5, 6 operable by pressure fluid in one of the hydraulic circuits against the force of return springs, there being pressure actuated switches 29-30 which indicate a pressure drop in the two circuits. As shown in Fig. 1, pressure switches 29-30 are operated by biasing pressure determined by a regulating valve 13. If, for example, the pipe 16 fractures, the pressure in control pipe 27 collapses and valve 5 moves to the left, as seen in Fig. 1, by its return spring and thus the control valve 3 is placed in communication with cylinder chamber 23 of servomotor 9 by pipes 14, 18. Since switch 29 is closed, a warning light 33 comes on to indicate the damage. Similar actuation of switch valve 6 occurs should failure occur in pipe 17. Also, should failure occur in servo pump 1 an auxiliary valve 7 is moved to the right, as seen in Fig. 1, resulting in collapse of switch valves 5, 6 under their return springs so that pressure produced by the control pump 2 from steering wheel rotation is transmitted by way of pipe 14, 18 to chamber 23 of servo 9 and by pipe 15, 19 to chamber 24 of servo 8. In a second embodiment, Fig. 2, initial actuation of switch valves 105, 106 is provided by pre-control valves 50, 51 having solenoids which are actuated by the starting current of the vehicle engine. The solenoids 52, 53 are held by a time-delay until the biasing pressure has been built up in the entire system. Valves 50, 51 are then moved by the force of their return springs to their starting position.
Patent GB-464173-A (GB)
Title: Improvements in or relating to the recording and reproduction of sound
IPC: G11B7/00
Filed: 1936-05-18
Abstract: 464,173. Sound - recording circuits. RADIO CORPORATION OF AMERICA. May 18, 1936, No. 14073. Convention date, May 24, 1935. [Class 40 (iv)] [Also in Group XL] In a system for recording on a groove record without excessive groove curvature, the soundmodulated voltage is first converted to a voltage substantially proportional to the curvature by an operation representing a differentiation with respect to time and this converted voltage is then subjected to peak suppression. In the system shown, the differentiation with respect to time is effected by a reactor 19 in the anode circuit of the first amplifier valve 15. Peak-suppression of the differentiated voltage is effected by a rectifying circuit 21 with biassing battery 22 associated with the anode circuit of a second valve 16, and the resultant voltage is then integrated with respect to time by a large condenser 23 in the plate circuit of a third valve 17 so as to give a resultant output voltage similar in wave-form to that applied at 13 and suitable for operating a standard cutter of the resistance-controlled type. For a cutter of the inertia type the integration stage is unnecessary ; for a cutter having resistance and inertia control over different frequency ranges a resistance 24 is connected in series with condenser 23 ; and for a cutter controlled by elasticity of the armature and stylus mounting, an additional integration stage is necessary. The reactor 19 may be replaced by a small series condenser connected between the anode of valve 15 and the grid of tube 16. In hill-anddale type records, limitation of curvature in the valleys only is effected by using a singlewave rectifier at 21 or by using an amplifier at 16 with a suitable non-linear characteristic. The degree of peak-suppression may be varied in accordance with the position of the cutter relative to the centre of the record by continuously varying the biassing battery 22 or by simultaneous control in opposite directions of potentiometers in the input and output circuits of valve 16.
Patent GB-354368-A (GB)
Title: Improvements in or relating to closure means for tins and other containers
IPC: B65D43/02
Filed: 1930-05-08
Abstract: 354,368. Closures for tins. SCHMIDT, E., 73, Augsburgerstrasse, Berlin, May 8, 1930, No. 14194. Convention date, Oct. 5, 1929. [Class 125 (iii).] A tin 1 has an upper part terminating in an outward bulge 2 with a free edge 2a, and the lid thereof has a bulge 5 below the top into which the bulge 2 snaps when' the tin is closed. The lower part of the lid is flared at 4 or is rolled over outwardly. The bulge in the lid is situated above the cylindrical portion of the skirt.
Patent GB-676433-A (GB)
Title: Improvements in or relating to cutting pads
IPC: C14B5/02
Filed: 1949-05-27
Abstract: A cutting pad is made by subjecting to heat and pressure a composition comprising 100 parts by weight of a butadiene-acrylonitrile copolymer containing at least 20 per cent acrylonitrile and from 80-105 parts by weight of the reaction product of cashew nut shell oil and another phenol (see, e.g., U.S.A. Specification 2,203,206) in admixture with sufficient aldehyde (e.g. hexamethylene tetramine) to make the compound thermosetting.  The composition may contain fillers, e.g. "Kalvan" which comprises ultra-fine particles of calcium carbonate together with a stearate soap, a channel black known as "Spheron" (Registered Trade Mark), and "Calcene" which comprises precipitated calcium carbonate and a soap. In an example 100 parts of "Hycar (Registered Trade Mark) OR-25," 95 parts of a phenol/cashew nut oil reaction product containing 8 per cent hexamethylamine tetramine, 15 parts of "Spheron No. 9" and one part of phenyl-beta-naphthylamine were mixed at 150-200 DEG  F. and moulded at 310 DEG  F. and 1400 lbs./sq. inch for 25 minutes.
Patent GB-700154-A (GB)
Title: Improvements relating to luggage carriers for fixing to the top of a motor car
IPC: B60R9/04
Filed: 1952-06-05
Abstract: 700,154. Luggage carriers for vehicles. PIRELLI SOC. PER AZIONI. June 5, 1952 [June 7, 1951], No. 14209/52. Class 103(2) A detachable luggage carrier for application to the top of a motor car consists of a plurality of stiffly flexible bars 1, the underside covered with a layer of elastic material 2, fastening means, for example, rings 6, affixed to the bars for making fast ropes or the like for securing the luggage, and straps 3, preferably composed of elastic material, affixed to the bars 1 and carrying hook devices 7 for hooking over or under protruding surfaces of the car top, the carrier being completely removable by an unhooking operation. The bars 1 may be composed of metal, wood, rubber or plastic material or a combination of two or more such materials, and may be divided into parts hingedly connected to one another. The material 2 may be of rubber strip and similar material may cover the top of the bars 1. The strips 3 are secured to the bars 1 by means of members fixed to the bars and each consisting of a ring 4 for attachment of securing ropes and eyes 5 through which the strap 3 is threaded. The hook device 7 may be attached to the strap 3 or to a portion 9 of a strap connected by a buckle 8 to the main portion. The straps 3 may be made of elastic ribbon described in Specification 661,487, [Group VIII]. -
Patent GB-543509-A (GB)
Title: Improvements in materials for garments
IPC: A41D27/28
Filed: 1939-05-12
Abstract: 543,509. Ventilating wearing apparel. STICH, K., and KLEPPER, H., (trading as KLEPPER-WERKE.). May 12, 1939, Nos. 14266 and 14267. Convention dates, May 20, 1938, and Aug. 25, 1938. [Class 141] [Also in Group VIII] A ventilating inset for wearing-apparel such as waterproof garments, comprises alternate plain and fluted strips 1, 2 of fabric, e.g. rubber or artificial rubber-coated fabric overlapping each other. The strips are either attached at their top edges to a permeable backing, or the backing is omitted and the strips cemented or vulcanized together at their contacting areas. The inset may be built up of strips cut from a compound fabric comprising a fluted fabric with plain fabric stuck on one or both faces. This compound is made by pressing a fabric into the spaces of a grid formed of squared bars by means of a ribbed roller or a second grid, coating the crests of the corrugations or flutes with an adhesive and applying a flat sheet on one or both sides.
Patent GB-632390-A (GB)
Title: Improvements in the processing of synthetic rubbers
IPC: C08L21/00
Filed: 1947-05-29
Abstract: The stickiness during processing or milling of a synthetic rubber is reduced by adding from 0.01 to 0.10 per cent by weight of a liquid organopolysiloxane.  The siloxanes may be prepared according to the methods described in Specifications 586,187, 586,188 and 586,189 and include:-(1) compositions consisting substantially of a mixture of silicones of the formula [(CH3)2SiO]x in which x is at least 10; (2) polysiloxanes of the general formula <FORM:0632390/IV (a)/1> where R is either H or a methyl radical and n is a positive integer, and (3) liquid methyl polysiloxanes in which all or substantially all of the silicon atoms are each connected to two methyl groups.  The substituted groups in these compounds may be methyl, ethyl, propyl, amyl, heptyl, isopropyl, cyclopentyl, cyclohexyl, phenyl, anthracyl, tolyl, xylyl, mesityl, aralkyl such as benzyl, phenylethyl, and alkenyl such as allyl and methallyl, and heterocyclic radicals which may contain inorganic radicals such as halogens.  The synthetic rubbers may be copolymers of butadiene with styrene, acrylonitrile, or isobutylene; polymers of chloroprene; or condensation products of dihalides with inorganic polysulphides.  Specifications 548,911 and 548,912 also are referred to.ALSO:The stickiness during processing on milling of a synthetic rubber is reduced by adding from 0.01 to 0.10 per cent by weight of a liquid organopolysiloxane.  The siloxanes may be prepared according to the methods described in Specifications 586,187, 586,188 and 586,189, [all in Group IV], and include:-(1) compositions comprising substantially of a mixture of silicones of the formula [(CH3)2 SiO] x in which x is at least 10. (2) Polysiloxanes of the general formula <FORM:0632390/V/1> Where R is either H or a methyl radical and n is a positive integer and (3) Liquid methyl polysiloxanes in which all or substantially all of the silicon atoms are each connected to two methyl groups.  The substituted groups in these components may be methyl, ethyl, propyl, amyl, heptyl, isopropyl, cyclopentyl, cyclohexyl, phenyl, anthracyl, tolyl, xylyl, mesityl, aralkyl such as benzyl, phenylethyl and alkenyl such as allyl, and methallyl, and heterocyclic radicals which may contain inorganic radicals such as halogens.  The synthetic rubbers may be copolymers of butadiene with styrene, acrylonitrile, or isobutylene; polymers of chloroprene; or condensation products of dihalides with inorganic polysulphides.  Specifications 548,911 and 548,912, [both in Group IV(a)], also are referred to.
Patent GB-1224701-A (GB)
Title: Process for the treatment of a textile yarn
Inventor: MOTTE RENE
IPC: D02G1/18
Filed: 1969-03-18
Abstract: 1,224,701. Bulked fibre yarn: differential shrinkage. SOC. RHODIACETA. 18 March, 1969 [18 March, 1968], No. 14298/69. Headings D1F and D1W. A process for the manufacture of high-bulk textile yarns comprises passing a spun yarn containing shrinkable and relatively unshrinkable fibres under a tension less than 0.1 gram per denier through a turbulent fluid zone and also subjecting it to conditions which cause ithe shrinkable fibres to shrink. The shrinkage operation preferably takes place after the passage of the yarn through the turbulent fluid zone, and is effected by heat, e.g. steam treatment. The shrinkable fibres preferably shrink by at least 25%, advantageously at least 50%, of their length. The turbulent fluid is advantageously a cold inert gas. The yarn travels through a conduit 6 opening into a chamber 7, the compressed fluid being fed by means of a channel 9 into the chamber 7, the channel 9 meeting the chamber 7 at an acute angle with the forward direction of travel of the yarn 'so producing a turbulent fluid zone. The difference in shrinkage potential between the shrinkable and relatively unshrinkable fibres is at least 20%. In preferred embodiment, polyvinyl chloride fibres are used as the shrinkable fibres and polyacrylonitrile fibres as the unshrinkable fibres. The yarn produced has a high bulk and fluffy appearance.
Patent GB-910313-A (GB)
Title: Improvements relating to the inhibition of pitting and corrosion of iron and steel
IPC: C23F11/18
Filed: 1960-04-25
Abstract: 910,313. Preventing and removing incrustation and corrosion. ALBRIGHT & WILSON (MFG.) Ltd. April 25, 1960 [April 23, 1959], No. 14344/60. Class 123 (1). The corrosion of iron or steel is prevented by including in a corrosive water or aqueous solution ions of zinc and of chromates and/or dichromates in such concentrations that they have a synergetic action inhibiting corrosion and pitting. The ion concentration of both constituents may be from 2 to 50 parts in a million, the chromate and/or dichromate ion concentration preferably being from 10 to 12 parts, and the zinc ion concentration from 2 to 10 parts, in a million. Soluble zinc salts, e.g. ZnSo 4 , ZnCl, and ZnNo 3 , may be used as sources of zinc ions.
Patent GB-1089541-A (GB)
Title: Logical electric circuits
Inventor: ALLMARK REGINALD HUGH
IPC: G06F7/38
Filed: 1963-04-11
Abstract: 1,089,541. Logical circuits using magnetic cores. ENGLISH ELECTRIC CO, Ltd. April 9, 1964 [April 11, 1963] No. 14518/63. Heading H3B. A logical circuit includes a magnetic core HO having a primary winding PO energized by current pulses, an inhibit winding IO controllable by logical operands to have either a high or a low impedance, and a secondary winding SO for producing output e.m.f's representative of the negation of the operand or operands. Fig. 1 shows a three input AND circuit in which the inhibit circuit has two yarallel portions each including a diode and a gate, the gates being controlled in response to inputs A and B respectively. A third input C is applied to the secondary winding. The output will exceed a predetermined value only when A, B and C are all present, since a voltage is induced in SO only when IO has a high impedance. To maintain the impedance of the primary circuit constant a second magnetic core may be provided with its primary winding in series with the first primary winding, the second core having an inhibit winding but no secondary winding. In this arrangement one of the parallel portions of the first inhibit circuit is omitted, and the gate in the second inhibit circuit is controlled in response to input A. The output from the secondary winding is A.C. In Fig. 3 equivalence and non-equivalence functions are produced using four cores. Cores H3, H4 have their secondary windings connected in series to form a single winding S2, and cores H5, H6 have a secondary winding S3. The inhibit windings are controlled as shown so that either winding I3 or I4 has a high impedance when A is equivalent to B, giving an output from S2, and so that either I5 or I6 has a high impedance when A is not equivalent to B, giving an output from S3. Fig. 4 shows a stage of a parallel binary multiplier in which two cases H7, H8 each have two secondary windings S4, S6, S7 and S5, while two further cores H9, H10 each have one secondary winding S8 and S9. With the gates and windings S6, S7, S8, S9 energized as shown by the carry C and sum S from a previous stage, and a new multiplicand M, and the negations of each, outputs are derived representing the new sum and carry and their negation. Devices using more than one core may be modified by the use of one or more pieces of magnetic material having a number of apertures equal to the number of cores originally used. Several stages of a binary multiplier may be formed on a single sheet of magnetic material. The drive current pulses in the primary windings are preferably insufficient to saturate the cores.